The world of NFA items — suppressors, short-barreled rifles, short-barreled shotguns, and more — intimidates a lot of gun owners. The process seems complicated, the wait times are long, and the legal jargon is thick. But here is the truth: buying an NFA item is not hard. It is slow, and it requires patience and paperwork, but the actual process is straightforward once you understand it.
This guide explains everything in plain English: what the NFA covers, how the purchase process works, whether to use a trust or buy as an individual, what it costs, and where NFA items are legal. By the end, you will know exactly what to expect and how to get started.
The National Firearms Act (NFA) is a federal law originally passed in 1934 that regulates the manufacture, sale, and possession of certain categories of firearms and accessories. The NFA does not ban these items — it places them under a registration and taxation system administered by the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF).
To legally own an NFA item, you must submit a transfer application to the ATF, pass a background check, and wait for approval. Until recently, this also required a $200 tax payment (the "tax stamp"). As of January 1, 2026, the One Big Beautiful Bill Act eliminated the $200 NFA tax for suppressors, SBRs, SBSs, and AOWs — the tax is now $0 for these items. Machine guns and destructive devices still require the $200 tax. Once approved, the item is registered to you (or your trust) in the National Firearms Registration and Transfer Record (NFRTR). You can then possess and use the item in any state where it is legal.
The NFA was originally aimed at gangster-era weapons — machine guns, sawed-off shotguns, and similar items associated with organized crime in the 1930s. Many of the categories it covers seem arbitrary by modern standards, but the law remains in effect and must be followed.
Suppressors, legally called "silencers" in the NFA, are devices that attach to or are integrated into a firearm's barrel to reduce the noise and muzzle flash of a gunshot. They are the most commonly purchased NFA items by far. Suppressors reduce the sound of a gunshot by 20 to 35 decibels, which brings most rifle calibers down from hearing-damage levels (160+ dB) to levels that are still loud but far less harmful (130-140 dB). A suppressed 9mm handgun running subsonic ammunition is roughly as loud as a car door slamming — notable, but not the thunderous crack that movies depict.
Suppressors protect hearing, reduce noise complaints at outdoor ranges, make shooting more enjoyable, and reduce felt recoil slightly. They are standard equipment in many European countries where civilian suppressor ownership is lightly regulated or even encouraged. In the U.S., they are legal in 42 states.
A short-barreled rifle is any rifle with a barrel length under 16 inches or an overall length under 26 inches. The AR-15 platform is the most common SBR configuration — a standard AR lower receiver with a barrel between 7.5 and 14.5 inches. SBRs are more maneuverable indoors, lighter, and easier to transport than full-length rifles, which makes them popular for home defense and vehicle use.
Note on pistol braces: the ATF's 2023 rule reclassifying braced pistols as SBRs was struck down by multiple federal courts in 2024, and the DOJ formally dropped its appeal in July 2025. The brace rule is effectively dead. However, the underlying NFA statutes still apply — if a firearm with a brace is designed or intended to be fired from the shoulder and has a barrel under 16 inches, it could still meet the statutory definition of an SBR. The DOPE Legal page tracks these developments.
Any shotgun with a barrel under 18 inches or an overall length under 26 inches. Short-barreled shotguns are less common than SBRs but have a following for home defense (the Remington 870 and Mossberg 590 are popular platforms) and as breaching tools in tactical applications.
Any firearm that fires more than one round per single pull of the trigger. This includes fully automatic firearms and burst-fire firearms. Civilian-legal machine guns must have been manufactured and registered before May 19, 1986 (the Hughes Amendment to the Firearm Owners Protection Act). Because no new machine guns can enter the civilian registry, the supply is fixed and prices are extremely high. A transferable M16 lower receiver typically sells for $30,000 to $45,000. A registered HK sear runs $40,000 to $60,000. Machine guns are the most expensive NFA items by a wide margin.
AOW is a catch-all category for unusual configurations that do not fit neatly into other NFA categories. Common examples include smooth-bore firearms under 26 inches overall length (pen guns and cane guns are historical examples), pistols with vertical foregrips, and certain disguised firearms. Historically, the tax stamp for manufacturing an AOW was only $5 (compared to $200 for other NFA items). As of January 2026, the transfer tax for AOWs is $0 along with suppressors, SBRs, and SBSs.
Firearms with a bore diameter over 0.50 inches (with exceptions for sporting shotguns) and explosive devices like grenades, rockets, and mines. This is the rarest NFA category for civilian owners. Some novelty items like chalk-round 37mm launchers are designed to stay outside the destructive device definition, but attaching certain ammunition types can push them into NFA territory.
The ATF Form 4 (Application for Tax Paid Transfer and Registration of Firearm) is the paperwork that transfers an NFA item from a dealer to you. Here is how the process works from start to finish.
You buy the NFA item from a licensed Class III / SOT (Special Occupational Taxpayer) dealer. This is a Federal Firearms Licensee (FFL) who has paid the additional SOT tax to deal in NFA items. Not every gun store is a Class III dealer. You pay for the item in full at the time of purchase. The dealer takes possession of the item (or already has it in stock) and holds it until your Form 4 is approved.
You (or your dealer) submit the Form 4 application to the ATF. This application includes your personal information, the details of the NFA item being transferred, your photograph (2x2 passport-style photo), fingerprint cards (two sets), and a notification to your local Chief Law Enforcement Officer (CLEO). The CLEO notification is just that — a notification. The CLEO does not need to sign off or approve anything. You simply send them a copy of the form.
As of January 1, 2026, the NFA tax for suppressors, SBRs, SBSs, and AOWs has been reduced to $0 under the One Big Beautiful Bill Act. You still complete the tax payment step in the eForm process, but the amount due is zero. Machine guns and destructive devices still carry the $200 tax. The Form 4 application, background check, and ATF approval are still required regardless of the tax amount.
The ATF processes your application, runs a background check (similar to but more thorough than the NICS check for regular firearm purchases), and either approves or denies the transfer. This is the longest part of the process. Current wait times vary significantly depending on whether you filed electronically or on paper.
Once the Form 4 is approved, the ATF mails the approved stamp back to your dealer (for paper forms) or the approval appears in the eForms system. Your dealer contacts you, you complete a standard 4473 form and NICS background check (yes, another one), and you take possession of your NFA item. You should receive the physical tax stamp, which is a small adhesive stamp affixed to your approved Form 4. Keep a copy of the approved Form 4 with the NFA item at all times — this is your proof of legal ownership.
The ATF launched the eForm 4 system in January 2022, and it has dramatically reduced wait times for electronic submissions compared to paper forms.
Always file electronically through the eForm 4 system. Paper forms should be considered a last resort. Even paper wait times have improved dramatically, but eForms are still significantly faster.
When you submit a Form 4, you can register the NFA item to yourself as an individual or to an NFA trust. Both are legal, and both require the same background check. The difference is in who can legally possess the item.
Pros: Simpler paperwork. No need to create a legal document. Only your photographs and fingerprint cards are required (not those of additional trust members).
Cons: Only you can legally possess the NFA item. Your spouse, children (over 18), or friends cannot handle or use the item unless you are physically present to maintain constructive possession. If you die, the NFA item must be transferred through probate, which involves another Form 4 (tax-free for estate transfers) and another months-long wait.
Pros: Multiple "responsible persons" (trustees) can legally possess NFA items held by the trust without the grantor being present. Your spouse, adult children, or trusted friends can use your suppressor at the range without you being there. Estate planning is simpler — upon your death, the trust continues to hold the items and the successor trustee takes over without a Form 4 transfer. You can add or remove trustees over time.
Cons: Every "responsible person" on the trust must submit photographs and fingerprints with each Form 4 application. If your trust has five responsible persons, that is five sets of fingerprints and photos per item. This adds complexity and cost, particularly if your trust has many members. Creating the trust itself costs $25 to $150 for an online NFA trust from services like National Gun Trusts, Silencer Shop's Single Shot trust, or a local attorney.
For most people, an NFA trust is the better choice. The estate planning benefits alone justify the small upfront cost. If you are married, a trust lets your spouse legally access NFA items without you present, which is a significant practical advantage. Keep the number of responsible persons small (you and your spouse is ideal) to minimize the fingerprint and photo burden on each Form 4.
If you are single, have no interest in sharing possession, and want the simplest possible process, individual registration is fine.
The NFA tax stamp was established in 1934 at $200 — equivalent to roughly $4,500 in today's dollars. It was deliberately set high to be prohibitive. For 90 years, the $200 tax remained unchanged. That changed on July 4, 2025, when President Trump signed the One Big Beautiful Bill Act (H.R. 1), which reduced the NFA tax to $0 for suppressors, SBRs, SBSs, and AOWs effective January 1, 2026.
Key points about the tax stamp in 2026:
NFA items must be purchased from or transferred through a licensed Class III dealer (an FFL with a Special Occupational Taxpayer designation). Not every gun store has this license. Look for dealers who specialize in NFA items or at least process them regularly — a dealer who does two NFA transfers a year will be less familiar with the process than one who does 200.
Silencer Shop has built the most streamlined NFA purchase experience in the industry. They operate a nationwide network of partner dealers with Silencer Shop kiosks — touch-screen stations where you can complete your photo, fingerprints, and Form 4 digitally in about 15 minutes. Silencer Shop handles most of the paperwork and eForm submission on your behalf. They also sell NFA trusts and provide ongoing tracking of your Form 4 status. If your local dealer has a Silencer Shop kiosk, the process is almost turnkey.
You can purchase NFA items from online retailers like Capitol Armory, Hansohn Brothers, and many others. The item ships to a local Class III dealer who handles the Form 4 transfer to you. The process is the same — you pay online, the dealer receives the item, you submit the Form 4 through the dealer, and you wait for approval.
Use the DOPE Price Finder to compare prices on suppressors and other NFA items across multiple retailers. Prices can vary by $50 to $200 for the same model. The DOPE Range Finder can help you locate Class III dealers near you.
NFA items are regulated at both the federal and state level. Even though an item is legal under federal law, your state may prohibit it. You must comply with both.
Legal in 42 states as of 2026. Prohibited in California, Delaware, Hawaii, Illinois, Massachusetts, New Jersey, New York, and Rhode Island. Some states that allow suppressors have additional restrictions (like hunting use limitations).
Legal in most states with an approved Form 4. Prohibited or heavily restricted in a smaller number of states including California, New York, New Jersey, and several others. State laws on SBRs are complex and change frequently.
Legal in most states, prohibited in roughly the same states that ban SBRs.
Legal at the federal level (pre-1986 registered only). A number of states have additional bans or restrictions on civilian machine gun ownership. Due to the extreme cost, this is a niche category.
State NFA laws change regularly. Use the DOPE Legal page for up-to-date state-by-state NFA item legality, including suppressors, SBRs, SBSs, and machine guns.
This is the biggest misconception, fueled by decades of movies and television. A suppressed gunshot is still loud. A suppressed 5.56 NATO rifle firing supersonic ammunition produces approximately 130-136 dB — roughly the volume of a jackhammer. A suppressed 9mm with subsonic ammunition is approximately 125-130 dB — comparable to a thunderclap at close range. Suppressors bring the noise down from causing instant hearing damage to merely being very loud. They are hearing protection devices, not stealth devices.
NFA items are federally legal. They require registration and a tax payment, but they are not banned at the federal level (with the exception that no new machine guns can be manufactured for civilian sale). State laws vary, but in the majority of states, suppressors and SBRs are perfectly legal to own with the proper paperwork.
Individual NFA item owners are not subject to warrantless ATF inspections. The ATF's inspection authority applies to Federal Firearms Licensees (dealers), not to individual owners. Owning a suppressor does not give the ATF the right to enter your home without a warrant.
There is no such thing as a "Class III license" for individual owners. Class III is a type of Special Occupational Taxpayer designation for dealers. Individual citizens purchase NFA items through the Form 4 transfer process — no special license is required. Any law-abiding citizen who can pass a background check and pay the $200 tax can own NFA items in states where they are legal.
You can transport NFA items across state lines, but the rules differ by item type. Suppressors can be transported to any state where they are legal without advance ATF approval. SBRs, SBSs, machine guns, and destructive devices require filing ATF Form 5320.20 (Application to Transport Interstate or to Temporarily Export Certain National Firearms Act Firearms) before crossing state lines. This form is free and typically approved within a few weeks.
Budget-friendly options like the YHM Turbo K and Resonator K start around $350 to $450. Mid-range suppressors from SilencerCo (Omega 36M, Hybrid 46M), Dead Air (Sandman S, Wolfman), and Rugged (Obsidian 45, Oculus 22) typically run $500 to $900. Premium options like the CGS Hyperion or Surefire SOCOM series run $1,000 to $1,500. With the $200 tax eliminated as of 2026, the price you see is the price you pay (plus dealer transfer fees if applicable).
For a first suppressor, many people start with a .30 caliber rifle can (usable on 5.56 and 7.62 rifles) or a .45 caliber pistol can (usable on 9mm and .45 ACP handguns). Multi-caliber suppressors that handle both rifle and pistol are available but tend to be larger and heavier.
The cost of an SBR is now just the cost of the rifle or lower receiver — the $200 tax stamp has been eliminated as of 2026. If you are building an AR-15 SBR from a stripped lower, the lower receiver costs $50 to $300, and you submit a Form 1 (Application to Make and Register a Firearm) rather than a Form 4. The upper receiver, barrel, and other components are not NFA-regulated and can be purchased freely. A complete SBR upper in 5.56 with an 11.5-inch barrel runs $300 to $800 depending on quality.
Pre-1986 transferable machine guns are collector's items with fixed supply and high demand. A registered M16 lower or RDIAS (Registered Drop-In Auto Sear) starts around $30,000 and can exceed $50,000. Mac-10 and Mac-11 variants are the most affordable transferable machine guns, starting around $8,000 to $12,000. Machine guns still require the $200 tax stamp, though it is insignificant relative to the purchase price.
If you have decided to purchase your first NFA item, here is your action plan:
The NFA process is slower than buying a standard firearm, but it is not complicated. The paperwork is manageable, the tax is a one-time cost, and the wait — while frustrating — is finite. Millions of Americans legally own NFA items, and the number grows every year. Once you get your first stamp back, you will understand why so many people say the same thing: the wait is worth it.